My problem that you either have them so copdependent one can't work while the other nurses or so hateful that they won't even speak to each other or work together. Most exist in a happy medium.

I don't dress like my sister. Haven't since we could pick out own clothes in the morning. Last time we wore identical outfits was first-grade picture day. But we are alike, we get along, we are each others best friend, we have the same job, but at different places, and would like to work together.

I just think you are going way, way too far in extremes.